The exact cause of bladder cancer is unknown. It occurs when abnormal cells grow and multiply quickly and uncontrollably, and invade other tissues. Smoking increases your risk of bladder cancer. Smoking causes half of all bladder cancers in men and women. The following factors also increase your risk of developing bladder cancer: exposure to cancer-causing chemicals at work.
Oil and natural gas are produced by the same geological process according fossil fuel suggestion: anaerobic decay of organic matter deep under the Earth's surface. As a consequence, oil and natural gas are often found together.In common usage, deposits rich in oil are known as oil fields, and deposits rich in natural gas are called natural gas fields.n general, organic sediments buried in depths of 1,000 m to 6,000 m (at temperatures of 60 Â° C to 150 Â°C) generate oil, while sediments buried deeper and at higher temperatures generate natural gas. The deeper the source, the drier the gas (that is, the smaller the proportion of condensates in the gas).
Â· just now. Report Abuse. Natural gas, commonly referred to as gas, is a gaseous fossil fuel consisting primarily of methane. It is found in oil fields and natural gas fields, and in coal beds. When methane-rich gases are produced by the anaerobic decay of non-fossil organic material, these are referred to as biogas.ndeed methane in the most popular answer here. Even a complicated 'Wiki' answer. While methane is a component of natural gas, it should be noted that natural gas also contains ethane.